Grilles & Diffusers
Submitted by danjoh99 on Fri, 07/16/2010 - 1:28pm
Does anyone have a source for a return grille that has its own removable filter? To my knowledge, best U.S. sources for Passive House grilles and diffusers are:
http://fantech.net/
http://www.seiho.com
...but I don't see that either of these offers a return grille with a filter. Any help? Dan Johnson, Arkin Tilt Architects

Filter Grilles
Shoemaker makes some. I recommend the 920 FG Series. It has a lower pressure drop. It will handle a standard 1" filter.
www.shoemakermfg.com
Pat Splitt - CEA
recommendation for grilles
I have used and specified stuff from this company, which has excellent engineering data in their product catalog: http://www.hartandcooley.com/